Coal-based gas dreg light-weight micro-pore concrete composite sheet material and preparation method thereof

A composite board and concrete technology, applied in the field of building materials, can solve the problems of environmental damage, depletion of natural building materials, and high cost, and achieve the effects of good thermal insulation performance, elimination of environmental pollution, and non-flammable durability.

A composite board and concrete technology, applied in the field of building materials, can solve the problems of environmental damage, depletion of natural building materials, and high cost, and achieve the effects of good thermal insulation performance, elimination of environmental pollution, and non-flammable durability.

CN104675010AInactive Publication Date: 2015-06-03CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Coal-based gas dreg light-weight micro-pore concrete composite sheet material and preparation method thereof
  • Coal-based gas dreg light-weight micro-pore concrete composite sheet material and preparation method thereof
  • Coal-based gas dreg light-weight micro-pore concrete composite sheet material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The raw material composition of the decorative mortar surface layer 1 is as follows according to the weight ratio per cubic meter of mortar:

[0050] River sand 1850 kg / m 3 ;

[0051] Cement 450 kg / m 3 ;

[0052] Admixture 50 kg / m 3 ;

[0053] Water reducer 3kg / m 3 ;

[0054] Tap water 105kg / m 3 ;

[0055] The raw material composition of lightweight microporous concrete insulation layer 2 is as follows according to the weight ratio per cubic meter of slurry:

[0056] Cement 330 kg / m 3 ;

[0057] Coal gas slag 380kg / m 3 ;

[0058] Admixture 40 kg / m 3 ;

[0059] Water reducer 4kg / m 3 ;

[0060] Tap water 90kg / m 3 ;

[0061] Foaming agent 0.5kg / m 3 .

[0062] The preparation method of the sheet material of embodiment 1 is as follows, as figure 2 Shown:

[0063] Step 1. Naturally air-dry the undisturbed coal gas slag in the open air;

[0064] Step 2, sieve the slag that has been air-dried to a loose state with a sieve with an aperture of 5 mm, and reta...

Embodiment 2

[0075] The raw material composition of the decorative mortar surface layer 1 is as follows according to the weight ratio per cubic meter of mortar:

[0076] River sand 2000 kg / m 3 ;

[0077] Cement 400 kg / m 3 ;

[0078] Admixture 70 kg / m 3 ;

[0079] Water reducer 3.5kg;

[0080] Tap water 120kg / m 3 ;

[0081] Inorganic pigments 4 kg / m 3 ;

[0082] The raw material composition of lightweight microporous concrete insulation layer 2 is as follows according to the weight ratio per cubic meter of slurry:

[0083] Cement 295 kg / m 3 ;

[0084] Coal gas slag 460kg / m 3 ;

[0085] Admixture 55kg / m 3 ;

[0086] Water reducer 3.6kg / m 3 ;

[0087] Tap water 120kg / m 3 ;

[0088] Foaming agent 0.9kg / m 3 .

[0089] The preparation method of the sheet material of embodiment 2 is as follows:

[0090] Step 1. Naturally air-dry the undisturbed coal gas slag in the open air;

[0091] Step 2, sieve the slag that has been air-dried to a loose state with a sieve with an apertu...

Embodiment 3

[0102] The raw material composition of the decorative mortar surface layer 1 is as follows according to the weight ratio per cubic meter of mortar:

[0103] River sand 2200 kg / m 3 ;

[0104] Cement 490 kg / m 3 ;

[0105] Admixture 85 kg / m 3 ;

[0106] Water reducer 4.2kg / m 3 ;

[0107] Tap water 140kg / m 3 ;

[0108] Inorganic pigments 6.5 kg / m 3 ;

[0109] The raw material composition of lightweight microporous concrete insulation layer 2 is as follows according to the weight ratio per cubic meter of slurry:

[0110] Cement 260 kg / m 3 ;

[0111] Coal gas slag 310kg / m 3 ;

[0112] Admixture 70kg / m 3 ;

[0113] Water reducer 3.2kg / m 3 ;

[0114] Tap water 150kg / m 3 ;

[0115] Foaming agent 1.2kg / m 3 .

[0116] The preparation method of the plate of embodiment 3 is as follows:

[0117] Step 1. Naturally air-dry the undisturbed coal gas slag in the open air;

[0118] Step 2, sieve the slag that has been air-dried to a loose state with a sieve with an apertur...

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Abstract

The invention provides a coal-based gas dreg light-weight micro-pore concrete composite sheet material and a preparation method thereof. The composite sheet material is formed by compounding a decorative mortar surface layer and a light-weight micro-pore concrete heat-preservation layer; coal-based gas dreg discharged in an industrialized process is taken as light-weight aggregate, has good heat-preservation performance, light weight, heat insulation performance and high specific strength, is wholly made from inorganic materials, and has the characteristics of nonflammable property and good durability; the defects that a heat preservation system of current frequently-used sheet materials, such as polystyrene plates, is flammable, the outer decoration easily forms swelling and falls and the service life is extremely lower than that of a building are overcome; and more importantly, industrial waste dreg is recycled so that the cost of the sheet material is extremely reduced, dual benefits of eliminating environment pollution and saving building energy are realized, non-renewable natural building material resources are protected, and the sheet material has real and long-lasting meanings on national economy and livelihood of people.

Description

technical field [0001] The invention belongs to the field of building materials, and specifically designs an environmentally friendly and energy-saving coal-made gas slag lightweight microporous concrete composite plate and a matching preparation method. Background technique [0002] Statistics show that about 2 million tons of coal-to-gas ash (referred to as coal-to-gas slag) are discharged in my country every year. Since they cannot be effectively utilized, such a large-scale waste has a serious negative impact on the environment. After my country formulated the coal-to-gas plan, coal was first made into gas, and gas was used as fuel to supply users. The implementation of this plan further increased the output of coal-to-gas slag, and the resulting environmental problems became more prominent. On the other hand, the mass production of traditional boards such as clay bricks requires a large amount of high-quality clay, which in turn leads to the destruction of large areas o...

Claims

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Application Information

Patent Timeline
03 Jun 2015
Publication
CN104675010A
IPC
E04C2/288; C04B28/00; C04B18/06; C04B38/02
CPC
Y02A30/244; Y02W30/91
Inventors
石云兴; 蒋立红